Scott A. Walker pleaded guilty to a single charge of DUI manslaughter Monday in the Oct. 25, 2014 crash that killed Selma A. Scott, 98, of Boynton Beach, at the intersection of El Clair Ranch Road and Lake Ida Road in Delray Beach.

Palm Beach County Circuit Judge Charyl Caracuzzo sentenced him to eight years in prison to be followed by seven years of probation as part of a plea agreement between Assistant State Attorney Danielle Sherriff and defense attorney Michael Weinstein. Caracuzzo also suspended Walker’s driver license for life, ordered him to perform 100 hours of community service and ordered him to pay more than $2,000 in restitution and other court costs once he is released from prison.

According to arrest reports, Walker had several drugs in his system — including cocaine, morphine, fentanyl and hydromorphone — when he ran a red light and broadsided the passenger side of Scott’s Hyundai Elantra.

Deputies at the scene said Walker’s pupils were constricted, his speech was slurred, he was unsteady on his feet and at times appeared to be drowsy and falling asleep after the crash.